At a Glance
- Tasks: Design and build backend services in Kotlin for a cutting-edge cloud-native platform.
- Company: Join a high-performing team in investment banking technology.
- Benefits: Competitive daily rate, hybrid work model, and collaborative culture.
- Other info: Dynamic environment with opportunities for continuous learning and shared ownership.
- Why this job: Make a real impact on global capital markets with innovative technology.
- Qualifications: Strong Kotlin experience and familiarity with event-driven architectures required.
We are seeking an experienced Interim Senior Kotlin Engineer to join a high-performing front-office engineering team delivering a next-generation cloud-native issuance platform for global capital markets. This platform is replacing a legacy bookbuilding system used by investment banking teams worldwide and supports high-volume, real-time workflows during critical trading windows. The engineering environment is collaborative, fast-paced, and strongly aligned to Extreme Programming (XP) principles.
The Role
This is a hands-on senior engineering position focused on designing, building, and evolving backend services in Kotlin within a modern cloud-native architecture. You will work closely with engineers, product specialists, and business stakeholders to deliver resilient, scalable solutions that support real-time issuance and allocation workflows. The role places strong emphasis on:
- Mob programming
- Collective ownership
Key Responsibilities
- Design, develop, and maintain backend services in Kotlin
- Contribute to event-driven and event-sourced platform architecture
- Collaborate within mob programming sessions as a primary delivery model
- Deliver high-quality, well-tested, maintainable code
- Support and improve production systems with strong reliability requirements
- Participate in CI/CD and SDLC practices within an enterprise environment
- Work closely with stakeholders to deliver incremental business features
- Use incidents and operational feedback to improve system resilience and design
Required Skills & Experience
- Strong commercial experience building backend services using Kotlin
- Deep understanding of event-driven and/or event-sourced architectures
- Extensive experience with XP engineering practices, including:
- Mob programming
- Test-driven development (TDD)
- Continuous refactoring
- Clean code principles
- Strong cloud engineering experience within GCP environments, including:
- GKE and/or Cloud Run
- Cloud SQL
- Memorystore
- Artifact Registry
- Cloud Logging
- Key Management
- Experience working within regulated or enterprise-scale environments
- Comfortable supporting high-availability production systems
- Strong communication and collaboration skills
- Experience within capital markets, trading, or real-time financial platforms
- Exposure to front-office engineering environments
- Experience working on distributed systems handling high-throughput workflows
You will join a collaborative engineering culture focused on:
- Shared ownership
- Continuous learning
This is an opportunity to work on a business-critical platform used globally within a modern cloud-native engineering environment. Applicants must hold current and valid UK Right to Work.
INTERIM Senior Kotlin Engineer - £630 p/d employer: 1st Executive Ltd
As an Interim Senior Kotlin Engineer in London, you will be part of a dynamic and collaborative engineering culture that prioritises shared ownership and continuous learning. The company offers a fast-paced environment aligned with Extreme Programming principles, providing opportunities for professional growth while working on a critical cloud-native platform that supports global capital markets. With a strong emphasis on mob programming and high-quality code delivery, this role not only promises meaningful work but also the chance to enhance your skills in a cutting-edge technological landscape.
StudySmarter Expert Advice🤫
We think this is how you could land INTERIM Senior Kotlin Engineer - £630 p/d
✨Tip Number 1
Network like a pro! Reach out to your connections in the industry, especially those in investment banking tech. A friendly chat can lead to insider info about job openings or even a referral.
✨Tip Number 2
Show off your skills! If you’ve got a portfolio or GitHub with Kotlin projects, make sure to highlight them. It’s a great way to demonstrate your expertise and passion for coding.
✨Tip Number 3
Prepare for interviews by brushing up on XP principles and event-driven architectures. Be ready to discuss how you’ve applied these in past roles, especially in high-pressure environments.
✨Tip Number 4
Don’t forget to apply through our website! We’re always on the lookout for talented engineers like you, and applying directly can give you a better chance of standing out.
We think you need these skills to ace INTERIM Senior Kotlin Engineer - £630 p/d
Some tips for your application 🫡
Tailor Your CV:Make sure your CV highlights your experience with Kotlin and any relevant cloud-native projects. We want to see how your skills align with the role, so don’t be shy about showcasing your achievements!
Craft a Compelling Cover Letter:Your cover letter is your chance to shine! Use it to explain why you’re excited about this role and how your background in investment banking technology makes you a perfect fit for our team.
Showcase Your Collaboration Skills:Since we value collaboration and mob programming, mention any experiences where you’ve worked closely with others to deliver projects. We love seeing teamwork in action!
Apply Through Our Website:Don’t forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity.
How to prepare for a job interview at 1st Executive Ltd
✨Know Your Kotlin Inside Out
Make sure you brush up on your Kotlin skills before the interview. Be ready to discuss your past projects and how you've used Kotlin to build backend services. They’ll likely want to hear about your experience with event-driven architectures, so have some examples at the ready.
✨Familiarise Yourself with XP Practices
Since the role emphasises Extreme Programming principles, be prepared to talk about your experience with mob programming, test-driven development, and continuous refactoring. Think of specific instances where you applied these practices and how they improved your team's output.
✨Understand the Business Context
This position is within investment banking technology, so it’s crucial to understand the basics of capital markets and trading workflows. Research the company’s platform and be ready to discuss how your technical skills can contribute to their goals in real-time financial environments.
✨Showcase Your Collaboration Skills
Collaboration is key in this role, especially with mob programming as a primary delivery model. Prepare to share examples of how you’ve worked effectively in teams, resolved conflicts, and contributed to a shared ownership culture. Highlight your communication skills and how they’ve helped in past projects.
